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Finding the Fourth Proportional to 496,721.57, 748,401.22 and 449,396.71

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Solution

The fourth proportional to 496,721.57, 748,401.22 and 449,396.71 is: 677,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,721.57 : 748,401.22 = 449,396.71 : x
  2. Step 2: Convert to fraction form
    496,721.57/748,401.22 = 449,396.71/x
  3. Step 3: Cross multiply
    496,721.57x = 748,401.22 × 449,396.71
  4. Step 4: Simplify right side
    496,721.57x = 336,329,044,718.73
  5. Step 5: Solve for x
    x = 336,329,044,718.73/496,721.57
  6. Step 6: Final answer
    x = 677,097.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.